2008 Audi S4 vs. 2006 Cadillac STS
To start off, 2008 Audi S4 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2006 Cadillac STS would be higher. At 4,124 cc (8 cylinders), 2008 Audi S4 is equipped with a bigger engine. In terms of performance, 2008 Audi S4 (456 HP @ 6800 RPM) has 203 more horse power than 2006 Cadillac STS. (253 HP @ 6500 RPM). In normal driving conditions, 2008 Audi S4 should accelerate faster than 2006 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi S4 weights approximately 113 kg more than 2006 Cadillac STS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2008 Audi S4 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2006 Cadillac STS (342 Nm @ 3200 RPM) has 40 more torque (in Nm) than 2008 Audi S4. (302 Nm @ 3500 RPM). This means 2006 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi S4.
Compare all specifications:
| 2008 Audi S4 | 2006 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | S4 | STS |
| Year Released | 2008 | 2006 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4124 cc | 3563 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 456 HP | 253 HP |
| Engine RPM | 6800 RPM | 6500 RPM |
| Torque | 302 Nm | 342 Nm |
| Torque RPM | 3500 RPM | 3200 RPM |
| Engine Compression Ratio | 11.0:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 249 km/hour | 229 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 7.4 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1895 kg | 1782 kg |
| Vehicle Length | 4580 mm | 4990 mm |
| Vehicle Width | 1400 mm | 1850 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2960 mm |
| Fuel Consumption Overall | 16.4 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 70 L | 66 L |
